How to Remove Hard-Water Stains From Sinks & Toilets

Dissolved minerals in water deposit on sinks and toilets, building up over time and leaving gray or white streaks and stains. Ordinary household cleaners and scrubbing don't remove these hard-water stains, but acid breaks them down. Household vinegar dissolves mineral deposits well, but its acid may etch the surface of porcelain-enamel sinks and toilets over time, and should be used with care.

Things You'll Need

Vinegar

Sponge

Baking soda

Paper towels

Pour undiluted vinegar on a sponge. Scrub the sink and toilet with the vinegar-soaked sponge.